Vegetable and fruit press



WISH-'I NSKY VEGETABLE AND IFRU TEI PRESS April 118,; 1939.

Filed May .27, 119.58

, .INVENTQR' VIM/Mm) Ms/vmsky BY ATTORNEY April 18,1939.

w. WISHINSKY VEGETABLE AND FRUIT PRESS 2 Sheets-Sheet 2 Filed May 27,1958 INVENTOR m Z'shmsky ATTORNEY Willi Patented Apr. 18, 1939 UNITEDSTATES PATENT OFFICE VEGETABLE AND FRUIT PRESS William Wishinsky, NewYork, N. Y.

Application May 27, 1938, Serial No. 210,365

1 Claim. (Cl. 100-44) My present invention relates to vegetable andfruit presses.

The principal object of this invention is to provide a press of noveland improved construction for extracting substantially all of the juicesfrom fruit or vegetable mashes.

Other objects will become manifest as this dis- .closure proceeds.

In the accompanying drawings forming part of this application, similarcharacters of reference indicate corresponding parts in all the views.

Fig. 1 is a plan view of an embodiment of my present invention.

Fig. 2 is a. front elevation of Fig. 1, partly in section.

Fig. 3 is an assembly, in plan, of screw actuating mechanism included insaid embodiment, shown in one operative position.

Fig. 4 is a similar view of said mechanism encased, shown in anotheroperative position.

Fig. 5 is an enlarged fragmentary section taken along lines 5-5 in Fig.1.

Fig. 6 is a central longitudinal section through Fig. '7.

Fig. '7 is an enlargement of the main screw engagement structureincluded in Fig. 2.

Fig. 8 is an enlarged fragmentary sectional view showing the left end ofFig. 5 in plan.

In the drawings, I5 is a strainer receptacle hav- 30 ing perforationsHi. This receptacle which receives the mash to be pressed, sits withinand is removable from cylinder H, which at its base is demountablypositioned within a ring l8 fashioned to include a forwardly extendingspout I9 upon the base 20. Upwardly extending from this base, are theboss spacers 2|, and the interior walls of the outer cylinder l! haveinwardly extending, spaced, longitudinal spacers 22. It is evident thatliquid would fiow out of the recep- 40 tacle l5, through apertures l6,and finally discharge from the spout l9.

A platen 23 is journalled at the lower end of the main screw 24, while awheel or other handle means'25 is secured at the top end of said screw.

45 A flanged, internally threaded member 26, serves as a nut on thescrew 24. This nut member is rotatably mounted through the frame piece2'! which latter is provided with a set-screw 28, for maintaining thenut member secure in the frame 50 piece. Upwardly extending from thebase 20, are a pair of vertical posts 29 and 30. The frame piece 27, atone end, is rotatably mounted at the upper end of post 30, for swingingmovement in a horizontal plane. The other end of such frame 55 piece,being fashioned as a hook, is provided with a latch means comprising,pin 32 for engagement in socket 3| of post 29 and adapted to bewithdrawn therefrom, by pulling the knob 33 against action of spring 34.Numeral 35 indicates a bushing through which pin 32 is slidably mounted5 and 36 is a collar fixed to said pin, for maintaining the assembly.

Up to this point, the operation of the press is ordinary. With nutmember 26 held stationary by means of the said set-screw 28, the piston21 10 is lowered or raised by turning the wheel 25. It is found thatmash, after being pressed with such structure, still contains asubstantial quantity of juice and it is quite impossible to lower theplaten any further with the above described means. 15 I thereforeprovide additional mechanism, so that at this phase of the operation,the movement of the piston could be continued downward until Whatremains in the receptacle I5, is a compressed, comparatively hard cakeof solid matter.

To attain such, I provide a gear 3'], which is positioned atop of theframe piece 2'! and is carried on and secured to the flanged nut memberby means of a key 38. Within casing 44, housing said gear 31, are a pairof pawls 39 and 40, 25 mounted on the spaced pins 4| and 42respectively. A blade spring 43 acts to maintain the pawls in engagementwith gear 31. A shifter arm 45 mounted on axis pin 46, is provided withthe laterally extending shifter fingers 41 and 48. Each of the pawls hasan integral upward extension 49, so that upon movement of the arm 45,about its axis 46, one of said fingers will shift the pawl it controls,out of engagement from the gear 31. One end of arm 45 extends outsidethe casing 44 and is provided with a set pin 50 including a downwardlyextending portion for removable engagement in the sockets 5| and 52 inthe top of the casing 44. Extending horizontally from said casing, isthe handle 53. A hubbed plate 54 through which the main screw 24 passesclear, maintains the casing 44 atop the frame piece 21. Said main screwalso passes clear through the ceiling of the casing. Bolts 5'! engagingthe frame piece 21, secure the plate 54 on the spacers 56. Through hub55,'is a set screw 58 for engagement with the main screw 24 along thelatters longitudinal keyway 59.

To continue with the operation after the platen 23 is lowered to suchextent as hand turning of the wheel 25 will permit, the nut member 26 isloosened to revolve free, by slight withdrawal of the set-screw 28. Themain screw 24, by back movement of the wheel 25, is turned until keyway59 is in alignment with the set-screw 58, which latter is then screwedinto said keyway, whereby the main screw 24 is maintained against axialrotation.

Now shifter arm 45 is set to position as shown in Fig. 3, where pawl 39engages gear 31, while finger 48 maintains pawl out of such engagement.Upon oscillatory movement of handle 53, it is evident that nut member 26will be given an intermittent movement about its axis, whereby the mainscrew 24 will correspondingly move downwards. The leverage present inthe construction, will effect the greater force necessary to drive thescrew to further compresss the mash within receptacle l5. Operation byhandle 53 is continued until the mash assumes a hard and substantiallydry consistency. In fact, it becomes a hardened disc, to be discarded.At this time, the adhesion between the platen 23 and the compressedmash, is so tremendous, that restoration of the apparatus to its initialset-up for manual operation by handle 25 to raise the screw 24, is foundimpossible. I therefore take advantage of the existing leverageconstruction and make the setting shown in Fig. 4, by shifting the armso that shifter set is 50, resides in socket 52, at which time, pawl 40by action of spring 43, will enter into engagement with gear 31, whilefinger 41 does shift pawl 39,and will maintain same out of engagementfrom said gear. Now upon movement of handle 53, the screw 24 will becaused to move upward. Only a small upward movement of the platen 23 isrequired to break the adhesion mentioned.

At this time the set-screw 58 is withdrawn from keyway 59, whileset-screw 28 is screwed inward to secure the nut member 26 stationarywith respect to the frame piece 21, and manual operation by hand wheel25. can again be accomplished as originally. Piston 23 is raised untilit clears the top of receptacle I5 whereupon withdrawal of the latch pin32 from its engagement with post 29, will permit the entire structurecarried on post 30 to be swung away to facilitate removal of receptacleI5. Members 21, 54 and 56 may be deemed a unitary frame structure.

Also, the gear 31 with its associated nut member 26 may be deemed aunit.

This invention is capable of numerous forms and various applicationswithout departing from the essential features herein disclosed. It istherefore intended and desired that the specific embodiments hereinshown, be deemed illustrative and not restrictive and that the patentshall cover whatever features of patentable novelty exist herein;reference being had to the following claim, rather than to the specificdescription herein, to indicate the scope of this invention.

I claim:

In a press for extracting the juice of a mash, the combination with areceptacle to hold the mash, of a frame, a nut member journalled on theframe, a set-screw in threaded engagement with the frame, adapted tomaintain the nut member against axial rotation, a screw in threadedengagement with the nut member, having a longitudinal keyway therein, aplaten member at one end of the screw, adapted to press on the mash uponlongitudinal movement of the screw into the receptacle, a handle meansat the other end of the screw, a set-screw threadedly engaged in theframe adapted to be moved into said keyway to maintain the screw againstaxial rotation, a gear secured on the nut member co axially therewith, acasing mounted loose about the screw, covering said gear, a pair ofpawls within the casing and pivotally carried thereby, a

spring means to maintain the pawls in engage-' ment with the gear, alever pivotally mounted on the casing and extending partially within andpartially without said casing, a pair of shifter fingers extending fromsaid lever and so positioned, that upon movement of said lever, one ofthe fingers will shift the pawl nearest to it, out of engagement fromthe gear, a handle ex tending from said casing and means to fix theposition of said lever; said means including a pin on the lever andperforations in the handle, the pawls being so positioned, whereby theyare adapted to drive the gear in opposite directions respectively.

WILLIAM WISHINSKY.

